Source – ostechnix.com Watchtower is a free, open source application that allows you to monitor the running Docker containers and updates them automatically if it finds any changes in their base images. When watchtower finds that a running container needs to be updated, it will gracefully stop the running container by sending it a SIGTERM signal. It will then download the new image, and finally restart the Container with the same options that were used when it was deployed initially. Everything will